Re: Sigma evaluation in Mathematica

I worked it out just now thanks, Bobby.

I hadn't entered Ctrl+Space to move the insertion point to the right of the Sigma.

Edit 1: I've been unable to repeat the error since!Edit 2: Tried some more, and apparently I had a 'TraditionalForm expression' in a 'StandardForm cell' (whatever that means). So...nothing to do with the CTRL+Space insertion point move.

Last edited by phrontister (2015-05-06 04:30:54)

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson

Re: Sigma evaluation in Mathematica

The aphorism said by Struts (Jack Weston) was "The ox is slow but the earth is patient". Apparently, this saying is an ancient Buddhist proverb. Its meaning (according to a blog on Yahoo Answers) is :

The ox is universally a symbol of slow, plodding, working in the fields or rice paddies, dragging the plow. But it gets the job done. "The earth is patient" expresses the meaning that time does not matter to nature. On a symbolic level, the phrase refers to man, plowing the field with the ox. The earth (a symbolic representation of all nature) is not in a hurry. Seasons come and seasons go. All in its time...persistence and patience are virtues to be admired.

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson

Re: Sigma evaluation in Mathematica

Nothing in this world can take the place of persistence. - Talent will not; nothing is more common than unsuccessful people with talent. - Genius will not; unrewarded genius is almost a proverb. - Education will not; the world is full of educated derelicts. Persistence and determination alone are omnipotent. Calvin Coolidge

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson